Face Morphing with Kevin

Face morphing involves selecting a set of critical points and then defining
a triangulation of these points. We then define two matrices: let us call one matrix
S for the points in a triangle in our source image, and D for the points in a triangle
in our destination image. We have an S matrix and D matrix for each triangle. Check out the
triangulation for George and Obama!

Now that we have a triangulation and matrices S and D, how do we get from S to D to make a morph?
Well we define an affine transformation matrix T. We pick some weighted average middle, which is our
target and then transform each of the images to this middle state. We know that TS = D. The matrices
are invertible so we can easily compute T. Once we have all of our T matrices, we can do an inverse warp.
For each point in our target, we apply T inverse, giving us a location in our original image. We set the color
at this point to the interpolated value of the source image since we may end up between a pixel. We do this
for a weight ranging from 0 to 1, then stitch all the images together, giving us the following warp.

Mean Face

I picked a subset of the Danish population: all the Danish males. Using the
given triangulation, I averaged all the critical points and then morphed every
face into the average critical point shape. Below are some of the results.

Once I got all the faces of average danes, I just took an average of all the
faces morphed into the average to give us the average Dane face shown below.

Kevin to Dane

Using the average architecture for Danes, I morphed my face into the
average Danish face. It seems like Danes have skinner faces than me.

Dane to Kevin

Now what if Danes had my head shape. Well they'd have a fatter face of
course. Check it out below.

Kevin's Danish Caricature

To find my Danish Caricature, I took a difference of my critical points with the average Danish critical points.
and added this difference to my own structure and morphed into this structure.

Bells and Whistles: Kevin to an Instagram Model

Appearance Only

Shape Only

Bells and Whistles: Warriors Themed Face Morph

In honor of the start of the regular season, I present the Golden State
Warriors face morph.